From: Linus Walleij <linusw@kernel.org>
To: Sebastian Reichel <sre@kernel.org>
Cc: linux-pm@vger.kernel.org, Linus Walleij <linusw@kernel.org>,
stable@vger.kernel.org
Subject: [PATCH 00/15] power: supply: Fix AB8500 and AB8505 charging
Date: Wed, 16 Sep 2026 08:49:22 +0200 [thread overview]
Message-ID: <20260916-ab8500-charging-v1-0-e986ed321cc6@kernel.org> (raw)
This series first fix two serious bugs in the AB8500/AB8505 charging
code making the charging report bad figures. (It only affects the
human-visible status, the charging itself is safe.) These two patches
are tagged for stable.
The series then audits the AB8500 and AB8505 battery-charging stack
against the revision 3 hardware manuals.
The audit found incorrect register constants and several independent
logic bugs in the common code. It also found that AB8505 needs dedicated
handling for its five-bit USB link-status table, OTP-programmed VBUS
overvoltage limit, longer VBUS debounce, reserved autopower field, and
lack of an integrated main charger. The final binding and DTS patches
remove the five nonexistent main-charger interrupts from AB8505.
Some further fixes come from auditing the Samsung product trees.
After these long due fixes the AB8500/AB8505 charging is smooth sailing.
Assisted-by: LLM
Signed-off-by: Linus Walleij <linusw@kernel.org>
---
Linus Walleij (15):
power: supply: ab8500_fg: Accept status from supplied power
power: supply: ab8500_fg: Report sub-percent charge changes
power: supply: ab8500: Correct register definitions
power: supply: ab8500_fg: Drop nonexistent AB8505 controls
power: supply: ab8500_btemp: Fix event temperature reporting
power: supply: ab8500: Preserve battery termination current
power: supply: ab8500_charger: Fix AC charger re-enable
power: supply: ab8500_charger: Decode AB8505 USB status
power: supply: ab8500_charger: Respect AB8505 register layout
power: supply: ab8500_charger: Handle detection errors
power: supply: ab8500_charger: Skip absent AB8505 main charger
power: supply: ab8500_charger: Retry AB8505 USB detection
power: supply: ab8500_charger: Recover inactive AB8505 charger
power: supply: ab8500_fg: Finalize current measurements
power: supply: ab8500_fg: Avoid reserved AB8505 CCConf bit
drivers/power/supply/ab8500-bm.h | 8 +-
drivers/power/supply/ab8500_bmdata.c | 3 +-
drivers/power/supply/ab8500_btemp.c | 30 +--
drivers/power/supply/ab8500_chargalg.c | 9 +-
drivers/power/supply/ab8500_charger.c | 404 ++++++++++++++++++++++++++++-----
drivers/power/supply/ab8500_fg.c | 179 +++++----------
6 files changed, 421 insertions(+), 212 deletions(-)
---
base-commit: 803733e3585d6fd2d43c452c502173fa153b683d
change-id: 20260915-ab8500-charging-c02f3519a3ab
Best regards,
--
Linus Walleij <linusw@kernel.org>
next reply other threads:[~2026-09-16 6:49 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-16 6:49 Linus Walleij [this message]
2026-09-16 6:49 ` [PATCH 01/15] power: supply: ab8500_fg: Accept status from supplied power Linus Walleij
2026-09-16 6:49 ` [PATCH 02/15] power: supply: ab8500_fg: Report sub-percent charge changes Linus Walleij
2026-09-16 6:49 ` [PATCH 03/15] power: supply: ab8500: Correct register definitions Linus Walleij
2026-09-16 6:49 ` [PATCH 04/15] power: supply: ab8500_fg: Drop nonexistent AB8505 controls Linus Walleij
2026-09-16 6:49 ` [PATCH 05/15] power: supply: ab8500_btemp: Fix event temperature reporting Linus Walleij
2026-09-16 6:49 ` [PATCH 06/15] power: supply: ab8500: Preserve battery termination current Linus Walleij
2026-09-16 6:49 ` [PATCH 07/15] power: supply: ab8500_charger: Fix AC charger re-enable Linus Walleij
2026-09-16 6:49 ` [PATCH 08/15] power: supply: ab8500_charger: Decode AB8505 USB status Linus Walleij
2026-09-16 6:49 ` [PATCH 09/15] power: supply: ab8500_charger: Respect AB8505 register layout Linus Walleij
2026-09-16 6:49 ` [PATCH 10/15] power: supply: ab8500_charger: Handle detection errors Linus Walleij
2026-09-16 6:49 ` [PATCH 11/15] power: supply: ab8500_charger: Skip absent AB8505 main charger Linus Walleij
2026-09-16 6:49 ` [PATCH 12/15] power: supply: ab8500_charger: Retry AB8505 USB detection Linus Walleij
2026-09-16 6:49 ` [PATCH 13/15] power: supply: ab8500_charger: Recover inactive AB8505 charger Linus Walleij
2026-09-16 6:49 ` [PATCH 14/15] power: supply: ab8500_fg: Finalize current measurements Linus Walleij
2026-09-16 6:49 ` [PATCH 15/15] power: supply: ab8500_fg: Avoid reserved AB8505 CCConf bit Linus Walleij
2026-10-02 22:07 ` [PATCH 00/15] power: supply: Fix AB8500 and AB8505 charging Linus Walleij
2026-10-04 19:33 ` Sebastian Reichel
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